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alphalph.sty	6.02 KB	-rw-r--r--
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Code Editor : alphalph.sty

%%
%% This is file `alphalph.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% alphalph.dtx  (with options: `package')
%% 
%% This is a generated file.
%% 
%% Copyright (C) 1999, 2006 by Heiko Oberdiek <oberdiek@uni-freiburg.de>
%% 
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either
%% version 1.3 of this license or (at your option) any later
%% version. The latest version of this license is in
%%    http://www.latex-project.org/lppl.txt
%% and version 1.3 or later is part of all distributions of
%% LaTeX version 2005/12/01 or later.
%% 
%% This work has the LPPL maintenance status "maintained".
%% 
%% This Current Maintainer of this work is Heiko Oberdiek.
%% 
%% This work consists of the main source file alphalph.dtx
%% and the derived files
%%    alphalph.sty, alphalph.pdf, alphalph.ins, alphalph.drv.
%% 
\begingroup
  \expandafter\let\expandafter\x\csname ver@alphalph.sty\endcsname
  \ifcase 0%
    \ifx\x\relax % plain
    \else
      \ifx\x\empty % LaTeX
      \else
        1%
      \fi
    \fi
  \else
    \expandafter\ifx\csname PackageInfo\endcsname\relax
      \def\x#1#2{%
        \immediate\write-1{Package #1 Info: #2.}%
      }%
    \else
      \def\x#1#2{\PackageInfo{#1}{#2, stopped}}%
    \fi
    \x{alphalph}{The package is already loaded}%
    \endgroup
    \expandafter\endinput
  \fi
\endgroup
\begingroup
  \expandafter\ifx\csname ProvidesPackage\endcsname\relax
    \def\x#1#2#3[#4]{\endgroup
      \immediate\write-1{Package: #3 #4}%
      \xdef#1{#4}%
    }%
  \else
    \def\x#1#2[#3]{\endgroup
      #2[{#3}]%
      \ifx#1\relax
        \xdef#1{#3}%
      \fi
    }%
  \fi
\expandafter\x\csname ver@alphalph.sty\endcsname
\ProvidesPackage{alphalph}%
  [2006/05/30 v1.4 Converting numbers to letters (HO)]
\expandafter\edef\csname aa@atcode\endcsname{\the\catcode`\@ }
\catcode`\@=11
\long\def\@ReturnAfterElseFi#1\else#2\fi{\fi#1}
\long\def\@ReturnAfterFi#1\fi{\fi#1}
\def\aa@alph#1{%
  \ifcase#1%
    @%
  \or a\or b\or c\or d\or e\or f\or g\or h\or i\or j\or k\or l\or m%
  \or n\or o\or p\or q\or r\or s\or t\or u\or v\or w\or x\or y\or z%
  \else
    @%
  \fi
}
\def\aa@Alph#1{%
  \ifcase#1%
    @%
  \or A\or B\or C\or D\or E\or F\or G\or H\or I\or J\or K\or L\or M%
  \or N\or O\or P\or Q\or R\or S\or T\or U\or V\or W\or X\or Y\or Z%
  \else
    @%
  \fi
}
\def\alphalph{\aa@callmake\aa@alph}
\def\AlphAlph{\aa@callmake\aa@Alph}
\def\aa@callmake#1#2{%
  \expandafter\aa@make\expandafter{\number#2}#1%
}
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname numexpr\endcsname\relax
  \def\aa@make#1#2{%
    \ifnum#1<1
    \else
      \@ReturnAfterFi{%
        \aa@process1;#1;1..#2%
      }%
    \fi
  }
  \def\aa@process#1;#2;{%
    \ifnum#1=#2
      \expandafter\aa@getresult
    \else
      \@ReturnAfterFi{%
        \expandafter\aa@process\number\aa@inc{#1}\aa@alphinc{;#2;}%
      }%
    \fi
  }
  \def\aa@getresult#1..#2{%
    \aa@@getresult!#2#1..%
  }
  \def\aa@@getresult#1!#2#3.{%
    \ifx\\#3\\%
      \@ReturnAfterElseFi{#1}% ready
    \else
      \@ReturnAfterFi{%
        \expandafter\expandafter\expandafter\expandafter
        \expandafter\expandafter\expandafter
        \aa@@getresult
        \expandafter\expandafter\expandafter\expandafter
        #2{#3}#1!#2%
      }%
    \fi
  }
  \def\aa@inc#1{%
    \ifnum#1<9
      \aa@nextdigit{#1}%
    \else
      \aa@reverse#1!!%
    \fi
  }
  \def\aa@nextdigit#1{\ifcase#1 1\or2\or3\or4\or5\or6\or7\or8\or9\fi}
  \def\aa@reverse#1#2!#3!{%
    \ifx\\#2\\%
      \aa@addone#1#3!!%
    \else
      \@ReturnAfterFi{%
        \aa@reverse#2!#1#3!%
      }%
    \fi
  }
  \def\aa@addone#1#2!#3!{%
    \ifnum#1<9
      \expandafter\aa@lastreverse\number\aa@nextdigit#1 #2!#3!%
    \else
      \@ReturnAfterFi{%
        \ifx\\#2\\%
          10#3%
        \else
          \@ReturnAfterFi{%
            \aa@addone#2!0#3!%
          }%
        \fi
      }%
    \fi
  }
  \def\aa@lastreverse#1#2!#3!{%
    \ifx\\#2\\%
      #1#3%
    \else
      \@ReturnAfterFi{%
        \aa@lastreverse#2!#1#3!%
      }%
    \fi
  }
  \def\aa@alphinc#1#2.{%
    \ifx\\#2\\%
      \@ReturnAfterElseFi{%
        #11..% ready
      }%
    \else
      \@ReturnAfterFi{%
        \ifnum#2<26
          \@ReturnAfterElseFi{%
            \expandafter\aa@alphinclast\expandafter
              {\number\aa@inc{#2}}{#1}%
          }%
        \else
          \@ReturnAfterFi{%
            \aa@alphinc{#11.}%
          }%
        \fi
      }%
    \fi
  }
  \def\aa@alphinclast#1#2{#2#1.}
  \newcommand*{\newalphalph}[3]{%
    \PackageError{alphalph}{%
      \string\newalphalph\space requires e-TeX%
    }\@ehc
\else
  \def\aa@make#1#2{%
    \ifnum#1<1 %
    \else
      \@ReturnAfterFi{%
        \aa@eprocess#1;#2%
      }%
    \fi
  }%
  \def\aa@eprocess#1;#2{%
    \ifnum#1<27
      \@ReturnAfterElseFi{%
        #2{#1}%
      }%
    \else
      \@ReturnAfterFi{%
        \expandafter\aa@eprocess\number\numexpr(#1-14)/26%
          \expandafter\expandafter\expandafter;%
          \expandafter\expandafter\expandafter#2%
          #2{\numexpr#1-((#1-14)/26)*26}%
      }%
    \fi
  }%
  \def\aa@gen@callmake#1#2#3{%
    \expandafter\aa@gen@make\expandafter{\number#3}#1{#2}%
  }%
  \def\aa@gen@make#1#2#3{%
    \ifnum#1<1 %
    \else
      \@ReturnAfterFi{%
        \aa@gen@eprocess{#3}#1;#2%
      }%
    \fi
  }%
  \def\aa@gen@eprocess#1#2;#3{%
    \ifnum#2>#1 %
      \@ReturnAfterElseFi{%
        \expandafter\aa@gen@eprocess\expandafter{%
          \number#1\expandafter
        }%
        \number\numexpr(#2-(\aa@half{#1}+1))/#1%
        \expandafter\expandafter\expandafter;%
        \expandafter\expandafter\expandafter#3%
        #3{\numexpr#2-((#2-(\aa@half{#1}+1))/#1)*#1\relax}%
      }%
    \else
      \@ReturnAfterFi{%
        #3{#2}%
      }%
    \fi
  }%
  \def\aa@half#1{%
    \number\dimexpr.5\dimexpr #1sp\relax\relax
  }%
  \newcommand*{\newalphalph}[3]{%
    \newcommand*{#1}{}%
    \edef#1{%
      \noexpand\aa@gen@callmake\noexpand#2{\number\numexpr#3}%
    }%
  }%
\fi
\catcode`\@=\aa@atcode
\endinput
%%
%% End of file `alphalph.sty'.

${this.title}

Code Editor : alphalph.sty